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regulator: core: Fix continuous_voltage_range case in regulator_can_change_voltage

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Regulator drivers with continuous_voltage_range flag set allows not setting
n_voltages. Thus if continuous_voltage_range is set, check the constraint range
instead.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2012-12-12 09:22:46 +08:00 committed by Mark Brown
parent a49f0d1ea3
commit 19280e4071
1 changed files with 9 additions and 3 deletions
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12
drivers/regulator/core.c
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@ -1885,9 +1885,15 @@ int regulator_can_change_voltage(struct regulator *regulator)
struct regulator_dev *rdev = regulator->rdev; struct regulator_dev *rdev = regulator->rdev;
if (rdev->constraints && if (rdev->constraints &&
rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE && (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
(rdev->desc->n_voltages - rdev->desc->linear_min_sel) > 1) if (rdev->desc->n_voltages - rdev->desc->linear_min_sel > 1)
return 1; return 1;
if (rdev->desc->continuous_voltage_range &&
rdev->constraints->min_uV && rdev->constraints->max_uV &&
rdev->constraints->min_uV != rdev->constraints->max_uV)
return 1;
}
return 0; return 0;
} }